Hughes, J. A., & Sharrock, W. W. (1997). The philosophy of social research (3rd ed.). Longman.
Cita Chicago (17th ed.)Hughes, J. A., i W. W. Sharrock. The Philosophy of Social Research. 3rd ed. London, New York: Longman, 1997.
Cita MLA (9th ed.)Hughes, J. A., i W. W. Sharrock. The Philosophy of Social Research. 3rd ed. Longman, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.